208781640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{579949}}^1$

素因数の和:579966

約数の個数: 48

約数和(自身を含む): 678541500

約数和(自身を除く): 469759860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 579949, 1159898, 1739847, 2319796, 2899745, 3479694, 4639592, 5219541, 5799490, 6959388, 8699235, 10439082, 11598980, 13918776, 17398470, 20878164, 23197960, 26097705, 34796940, 41756328, 52195410, 69593880, 104390820, 208781640]

約数ペア:

[(1, 208781640), (2, 104390820), (3, 69593880), (4, 52195410), (5, 41756328), (6, 34796940), (8, 26097705), (9, 23197960), (10, 20878164), (12, 17398470), (15, 13918776), (18, 11598980), (20, 10439082), (24, 8699235), (30, 6959388), (36, 5799490), (40, 5219541), (45, 4639592), (60, 3479694), (72, 2899745), (90, 2319796), (120, 1739847), (180, 1159898), (360, 579949)]